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(NoModelL) J. H. BULLARD. HYDROGARBON BURNING APPAR TUS.

No. 483,099. Patente' Sept. 20, 1892.

NI'TED STATES PATENT QFFICE;

JAMES H. BULLARD, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNORTO THE AERATEDFUEL COMPANY, OF SAME PLACE.

HYDROCARBON-BURNING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 483,099, datedSeptember 20, 1892. Application filed December 21, 1891. Serial No.415,752. (No model.)

To all whom it may concern:

Be it known that I, JAMEsH. BULLARD, a citizen of the United States,residing at Springfield, in the county of Hampden and State ofMassachusetts, have invented new and useful Improvements inHydrocarbon-Burning Apparatus, of which the following is aspecification.

This invention for improvements in hydroro carbon-burning apparatus isparticularly designed for securing in a peculiarly arranged andconstituted hydrocarbon plant the automatic delivery of the oil to theburnersin conjunction with and only during the time of the delivery ofair to the burners under an ample pressure or in the required quantity.

To this end the invention consists in the combination, with thehydrocarbon-burner, of an oil-supply tank, a steam-driven pump having aninduction-conduit leading thereto from the tank and an eduction-conduitleading therefrom for conveying oil to the burner, an

air-compressor andaconduitforleadingthe air.

therefrom to the burner, a steam-pipe for sup- 2 5 plying the workingpressure tothe oil-pump, having an automatic normally-closed valvetherein, an air-chamber, one wall of which is constituted by a movablediaphragm, a medium of connection between the diaphragm go and valve,and a pipe in communication with the air-compressor and the saidchamber, all whereby under the proper establishment of air-pressure bythe air-compressor for the requisite burner-supply the steamway to thepumping-engine will be open for insuring the pumping of the oil to theburner, but also whereby on the cessation of the air pressure and supplythe steam will be automatically shut off from the pump to secure thediscontinuance of the oil-supply.

The apparatus is illustrated in the accompanying drawing, the figurebeing an elevation and partial vertical section thereof.

In the drawing, A indicates an injector- 5 burner having, as is wellknown. in this type of oil-burner, oil and air passages therethrough,enteringat different points and terminating at a common nozzle, theburner being shown as in operative relation to a forge-fur- 5o nace E.

B represents a steam driven air-compressor engine, for which a is thesteam-supply pipe, and d is the air receiver or reservoir, which isconnected to and is in a sense to be regarded as a part of theair-conduit which leads away from the air-compressor, said conduit beingcontinued, as shown, in the pipe cl and branch 61 to connection at theair-inlet of the burner A.v

7 represents an oil-supply tank, the same being usually and preferablyunderground, and D represents a steam-driven pumpingengine located abovethe tank, with the induction-opening of which is connected the conduitf, which leads thereto from a low point within the oil-supply tank 0. 65

g represents a conduit which leads from its connection at the eduction-opening of the steam pumping-engine,beingcontinued in the conduitsection or branch g to the oil-inlet passage of the burner A.

0, represents the pipe which conveys the steam to the pumping-engine Dto insure the working thereof, said pipe leading from any sourceofsteam-supply, it, as shown, being a branch of the steam-pipe whichsupplies the air-compressing engine. The said steam-pipe which leads tothe oil-pumping engine has therein a valve n, which has capabilities forautomatically closing the steamway in the pipe 0?. Said valve 72 ismounted to slide in the coupling-body fitted between sections of thesaid pipe a having a suitably-extended valve-stein n engaged with whichis one arm of a pivotally -mounted elbow-lever m the other arm of whichlever has a weight thereon, 8 5 which secures its down-swinging and theforeing of the valve closed. (In the drawing the valve is indicated asopen, as is always the case during the operation of the apparatus underproper conditions.) .0

irepresents an air-chamber adjacent the valve n, one side of which isconstituted by the casting i and the other by the diaphragm m, the oneshown being understood asa flexible diaphragm, and the same ispreferably protected by the concavo-convex guard-casting 0. Thevalve-stem n forms the medium of connection between the valve and diaphragm. Generally speaking, this form of diaphragm and its engagementwith a valve or regulator is well known 3' represents the pipe whichleads from com munication with the air-compressor to the interior of theair-chamber i. It is therefore manifest that the air-supplying operationof the air-compressing engine will automatically maintain the valve nopen and permit the passage of the steam to the pumping-engine for therunning of the latter to supply oil to the burner, and it will also beseen that on the cessation of the air-supply under the proper pressureto the burner the same will be automatically shut off'from the pump byreason of the capability of the valve for closing when the air-pressureupon the diaphragm is relieved.

The described devices constitute automatic safeguards againstoverflowing of oil at the burners and possible confiagration at suchtimes as there is forany reason, accidental or otherwise,a 'failure tosupply such quantities 20 of air also to the burner as to insure thecomplete burning of the oil.

There are indicated at h with relation to invention, the same beingembodied as an essential part of the subject-matter of anotherapplication for Letters Patent of the United States for improvement inapparatus for burning hydrocarbon, filed by me simultaneously with thisapplication. a

I claim- In an apparatus for burning hydrocarbon, in combination,ahydrocarbon-burner, a supply-tank, a steam-driven pump having aninduction-conduit leading thereto from the tank and an eduction-conduitleading therefrom for conveying oil to the burner, an air-compressor anda conduit for supplying air therefrom to the burner, a steam-pipe forsupplying the Working pressure to the oil-pump, having an automaticnormally-closed valve therein, an air-chamber, one wall of which isconstituted by a movable diaphragm, a medium of connection between thediaphragm and valve, and a pipe in communication with the air-compressorand the said chamber, and all arranged for conjoint action,substantially as set forth.

JAMES H. BULLARD. Witnesses:

H. A. CHAPIN, WM. S. BELLOWS.

